Hexamail Server POP3 request buffer overflow

hexamailserver-pop-bo (36369) The risk level is classified as HighHigh Risk

Description:

Hexamail Server is vulnerable to a buffer overflow. By sending a specially-crafted POP3 request, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.

Platforms Affected:

  • Hexamail, Hexamail Server 3.0.0.001

Remedy:

Upgrade to the latest version of Hexamail Server (3.0.1.004 or later), available from the Hexamail Server Web site. See References.

Consequences:

Gain Access

References:

  • Hexamail Server Web site, Hexamail Server - High-performance email server - Index at http://www.hexamail.com/hexamailserver/.
  • BID-25496: Hexamail POP3 Server Remote Buffer Overflow Vulnerability
  • CVE-2007-4646: Buffer overflow in the pop3 service in Hexamail Server 3.0.0.001 Lite allows remote attackers to cause a denial of service (daemon crash) and probably execute arbitrary code via a long USER command.
  • SA26666: Hexamail Server "USER" Buffer Overflow Vulnerability
  • SECTRACK ID: 1018637: Hexamail Server Buffer Overflow in POP3 USER Command May Let Remote Users Execute Arbitrary Code
  • VUPEN/ADV-2007-3044: Hexamail Server USER Command Processing Buffer Overflow Vulnerability

Reported:

Aug 30, 2007

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